Combined transparent charging tube and base for use with a gunpowder flask



FIG. 1 is a side elevational view of a combined transparent charging tube and base for use with a gunpowder flask, showing my new design,

FIG. 2 is a top view thereof; and

FIG. 3 is a bottom view thereof. 

The ornamental design for a combined transparent charging tube and base for use with a gunpowder flask, as shown. 